Machine for working uppers over lasts



B. JORGEiJSEN. MACHINE FOR WORKING UPPERS OVER LASTS.

APPLICATION FILED MAY 3, 191B.

Patented Oct. 3, 1922;.

B SHEETS-SHEET I.

B. JORGENSEN. MACH|NE-FOR WORK|NG UPPERS OVEWLASTS. APPLICATION FILED MAY 3. 1918.

1 ,%30,559., Patented Oct. 3, 19220 6 SHEETSSHEET 2.

B. JORGENSEN. MACHINE FOR WORKING UPPERS OVER LASTS.

APPLICATION FIL ED MAY 3. I918.

Patented 'Oct. 3, 1922.

6 SHEETSSHEET 3 1 l I x v I l I I 1 I I I l B. JORGENSEN.

MACHINE FOR WORKING UPPERS OVER LASTS. ,APPLICAHON FILED MAYYS, 191a.

1,%3U,559. Patented Oct 3, 1922* 6 SHEETS-SHEET 4 I r i v ,220

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v B. IORGENSEN. MACHINE FOR WORKING UPPERS OVER LASTS. APPLICATION FILED MAY 3, I9I8.

Patented Oct. '3, 19.22;

6 SHEEITS*SHEET 5.

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B. JORGENSEN. MACHINE FOR WORKING UPPERS OVER LASTS.

AIPLICAHON FILED MAY 3, 1918.

Patented Oct. 3

1922,, -6 SHEETS-SHEET 6 Patented Uri. 3, 1922.

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nnnnnannr JORGENSEN, or BEVERLY, AssacHUsE'r'rs, assmnoni'ro UNITED sHon MACHINERY CORPORATION, or rATnnsoN, NEW inn-sa a oonronarron or NEW JERSEY.

MACHINE FOR WORKING UPPERS OVER LASTS.

Application filed May 3, 1918. Serial No. 232,238.

To all whom it may concern:

Be it known that I, BERNHARDT Jonennsex, a subject of the King of Denmark, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain Improvements in Machines for Working Uppers Over Lasts, of which the following description, in connection With the accompanying drawings, is a specification, like reference characters on: the drawings indicating like parts in the several figures.

This invention relates to machines for use in the manufacture of boots and shoes and in some of its important aspects has particular reference to machines for working uppers over lasts. The invention is herein shown in its application to a wellknown type of machine having means for pulling the upper over the last and also means for lasting the toe portion of theshoe, machines comprising such combination of lasting means With pulling-over means being used at the present time principally in the manufacture of turn shoes. In its broader aspects, however, and in many of its features the invention is not limited to machines for performing both pulling-over and lasting operations nor to machines designed particularly for turn shoe Work.

Machines of the illustrativetype include in the r organization a gripper or grippers for engaging the margin of the upper at the toe end of the last and other grippers 'for engaging the upper at opposite sides of the forepart of the last, together With means for effecting relative movement of the last and the several grippers to stretch the upper longitudinally and transversely of the last. After the upper has been stretched the machine comes to rest with the upper held under tension by the grippers to permit the operator to inspect the Work and to make any adjustment that may be necessary for the purpose of correcting the position of the upper in its relation to the last. or of changing the relative tension. of different portions of the upper prior to the subsequent operation of the machine to carry the margin of the upper over the bottom of the sole or insole and fasten it in place. The several grippers are under the controlof springs which are tensioned more or less in the upper stretching operation and thus cause the pull ,upon the upper to be eflectedyieldingly and also permit the difierent grippers to be moved byhand during the pause in the machines operations. forthe purpose of increasing or relaxing the tension of the upper at the toe or at the sides of the shoe or for the purpose of adjusting portions of the upper transversely or lengthwise of the last- The best results in the pulling-over op erat' on, frequently require thatan additional upper pulling movement be imparted to the toe. gripper afterthe machine has come to rest with .the upper. held. under tension;

Such necessity may arise from the common practice of adjusting the toe gripper op-.

crating mechanism to impart to the upper a tension less than the required final tension,

in. order ,to avoid displacement of the tip seam, lengthwise displacement of the last under the strain-of the upper against the. toe end of the last, or. on some styles of shoes to avoid. bridging of the upper over the top of the forepart of the last in such manner as to prevent the upper from being drawn down to the Wood of the last by the action of the s de grippers. It has accordingly been the usual practice heretofore for the operator to reach upward and manipulate the toe gripper lever to increase the strength of the pull of the gripper upon the upper. In order to facilitatesuch additional stretching of the upper lengthwise of the last and over the toe, it is desirable that the tension of the upper across the forepart be some What relaxed and that, such transverse tension be restored subsequently to the additional lengthwise stretching. In some cases also it is desirable to impart to the side grippers a supplemental pulling movement irrespective of any conditions dependent in the ju iper the precise degree of tension de-.

sired. In its illustrative embodiment the invention provides novel means convenient for manipulation by the operator for moving diiierent grippers in difierent directions. The construction shown comprises means for impartingan upper pulling movement to the toe gripper and for imparting to the side grippers during such movement of the toe gripper a movement in a direction to relax the transverse tension of the upper. A further advantageous characteristic of the novel construction wherein this feature of the invention is shown as embodied is that the relaxing movement of the side grippers is limited irres ective of continued pulling movement of t e toe gripper, thus permitting the upper to be pulled at the toe as hard as desired without danger of unduly relaxing the transverse, tension. The constructionshown also includes provision for movement of the side grippers to increase the transverse tension of the upper independently of any movement of the toe gripper. Conveniently the operator is enabled, in the use of the construction shown, by movement of a hand lever in one direction to impart a supplemental pulling movement to the toe gripper and a relaxing movement automati- S cally limited in extent to the side grippers,

and by a movement of the hand lever in the opposite direction, either subsequently or irrespective of any previous operation of the lever to move the side grippers in a direction to increase the transverse tension of the upper.

Another important feature of the invention consists in novel means arranged to be rendered operative under abnormal conditions vfor suspending a normal function of a portionof a machine. A particular object in view as applied to a machine equipped for inserting fasteners such, for example, as tacks, is to prevent'under abnormal conditions driving of fasteners or wasteful discharge of the fasteners. In the operation of machines of the illustrative type it sometimes happens that after the machine has stopped at the end of its upper pulling movement it becomes necessary, by reason of an abnormal condition in respect to the action of one or more of the grippers, to perform the upper pulling operation a second time before'the' upper is fastened. In such case the shoeis usually released manually from the upper pulling means, and the machineis then caused to complete its operating cycle to bring the parts againto starting position ready to receive and pull the upper the *ond time. The construction herein shown comprises means which acts automatically upon premature release of the shoe by a gripper, or in the absence of a shoe, to prevent, during the completion of the cycle at unovements of the machine, any discharge or driving-of the several tacks which the machine would normally have driven for securing the upper in place. Included in the position to bev driven and which the machine would normally have driven if the operation of the driving means had not been interrupted.

Further features of the invention reside in novelmeans for varying the normal dis tance between the grippers at the opposite sides of the shoe, novel means for varying the limit 01 opening movement of the end lasting wipers, novel means for positioning the shoe and the last, and in various details of construction and combinations of parts which will now be described with reference to the accompanying drawings andpointed out in the claims.

In the drawings,

Figure l is a View in side elevation of the head portion of pulling-over and toe lasting machine in which the invention is embodied;

Fig. 2 is a perspective'view, with portions broken away, of the updrawn mechanism of the machine together with the means provided for effecting a manipulation of the toe and side grippers;

Fig. 3 is a View substantially in rear elevation of the mechanism shown in Fig. 2;

Fig. 4 is a View in vertical section on the line 4-4 of Fig. 3;

Fig. 5 is a vertical section on the line 5-5 of Fig. 3;

Fig. 6 shows in perspective mechanism with which the machine is provided for con trolling the operation of the tack supplying and driving means;

Fig. 7 shows in disassembled relation 105 parts of themechanism associated with one of the tackdrivers for controlling the oper-- ation of'the driver;

Fig. 8 is a plan view of one of the parts seen in Fig. 7, showing the driver bar in 110 assembled relation Fig. 10 is a view in vertical section of a portion of the controlling mechanism shown in Fig. 6;

Fig. 11 is a plan view of a portion of the controlling mechanism shown in Fig. 6, parts being shown in section on the line 11l1 of Fig. 10;

F 12 is a perspective View showing mechanism with which the machine is provided for adjusting the spread of the side ipp Fig. 13 is a detail view of one of the parts shownin Fig. 12;" l w Fig. 14 is 'a view of the end lasting wipers with which the machine is provided. including the novel means for adjusting the limit 130 of opening movement of the wipers, the wipers being shown in inverted position, and

Fig. 15 is a view in side elevation, and partly in vertical section, of a portion of the mechanism seen in Fig. 1, illustrating the construction of the novel work positioning means.

The drawings illustrate the application oi the invention to a pulling-over machine oi. a well-known type including means for last ing the toe portion of the shoe, the general organization and construction of machines of this type being more fully set forth in the United States Letters Patent No. 1,029,-

387, granted on June 11, 1912 upon an application of R. F. McFeely and f'ljii'ther, with respect to the lasting means, in Letters Patent No. 1,280,618 granted on Oct. 1, 1918 upon an application of Orrell Ashton. in view of the disclosure in said patents, the general organization of the machine herein shown, in so far as the construction is common to prior machines of the illustrative type, will be described herein only briefly.

The upper pulling instrumentalities of the machine include side grippers compris ing gripper jaws 2 for engaging the upper at opposite sides of the forepart of the last, gripper casings at on which the jaws 2 are mounted, and gripper bars 6 whereby the closing and uplifting movements of the jaws 2 effected, the bars (5 being supported by ball joints in side updraw levers 8 which are pivotally mounted on a bar 10 supported by the frame of the machine. The levers b at their rear ends have swiveled connection with blocks 12 which are slidably mounted on rods 14: secured to a cam slide 16, this slide being provided with a roll 18 which engages in a groove in a cam 20 on a cam shaft 22. Mounted on the rods 11- between the blocks 12 and nuts 24 on the upper ends of the rods are springs 26 which serve to transmit movement from the cam slide 16 to the levers S for applying tension yieldingly to the upper through the side grippers. The machine is also provided with a toe gripper comprising two pairs of gripper jaws 28 mounted on a gripper casing 30 and operated through a gripper bar which is pivotally connected to a lever 34. The lever 34 in the construction shown is pivotally supported between its ends at 36 upon the front end of a main updraw'lever 38 mounted on the mounted on a rod 46 which is secured to a cam slide 48 carrying a roll 50 engaging in a groove in an operating cam 52 on the shaft 22. A spring 54 mounted between the block 44: and a nut 56 on the rod 46 serves to transmit movement of the slide 45 to the lever 38 to effect a yielding updraw movement of the toe gripper. It will be understood that the updraw movements of the side grippers and the toe gripper are effected by downward movement of the operating slides 16 and 48, whereby the springs 26 and 54 are tensioned and transmit movements of variable extent to the levers S and to stretch the upper yieldingly over the toe of the last and transversely across the forepart, and that at the end of the gripper operating movement of the slides 16 and 18 the machine comes to rest with the upper held under tension in order to permit in spection of the shoe and any adjustments which may be necessary in order to position the upper correctly upon the last or to change the relative tension applied to different portions of the upper.

Other instrumentalities herein shown which in their general characteristics are likewise common to prior machines of the illustrative type comprise a sole rest which engages the sole of the shoe on. the bottom of the last the forepart and is roclred downwardly in unison with the gripper movements to assist in stretching the upper, a heel rest 60 which is moved up automatically into engagei'nent with the heel end of the shoe, side clamp arms (52 which are swung inward into holding and supporting engagement with the shoe at the sides of and underneath the forepart. and upper fastening instrumentalities comprising opposite side tacker arms 64: and a toe tacker arm 66 which carry tack holding and. driving means and are swung inward over the bottom of the shoe into posiiton for driving the tacks. Mounted upon the front tacker arm 66 are also wipers 68 which serve to wipe the toe portion ofthe shoe into lasted position during the inward swinging movement of the taoker arms.

It will be understood that the operation of the machine, in common with other machines of this general type,is effected in successive periods or stages, the machine coming to rest at the end of the first period with the upper under tension, as above explained. Some machines of this general type complete their cycle of operation in two periods or stages, while others require three stages for the completion of the cycle of operations. The precise number of stops which the machine makes in its cycle of operations is im material to the present invention, but for purposes of illustration the drawings show a construction in which the cycle of operations is completed in three stages. in the operation of this machine the second stage of the operations comprises an inward swinging movement of the side clamp arms 62 into work supporting and holding position, after which the machine again comes to rest. While the machine is thus at rest, the toe gripper is tripped by hand to cause the jaws 28 to release the upper and the wipers 68 are positioned in end embracing relation to the toe of the shoe. Upon a subsequent actuation of the starting treadle, the side grippers are swung inward to carry the margin of the upper over the bottom of the sole and at the same time the side and toe tacker arms are swung inward to tack driving position, the wipers 68 being simultaneously operated to last the toe portion of the shoe. As the side tacker arms swing inward the side grippers are tripped to cause them to release the upper and tacks are finally driven at the sides of the forepart and round the toe to secure the upper. Before the machine comes to rest the parts are returned to starting position and the shoe is released.

To enable the operator to manipulate the grippers for effecting a relative adjustment of the tension of different portions of the upper while the machine is at rest at the end of the first period of the cycle of operations, the machine herein shown is provided at one side and within convenient reach of the operator with a hand lever 70 secured on the forward end of an arm 72 provided with a hub portion 74 pinned to a rock shaft 7 6 which is mounted in bearings 78 and 80 carried respectively by supporting brackets 82 and 84. Av block 86 secured to one end of the rock shaft 7 6 carries spring pressed plungers 88 and 90 which engage respectively at opposite sides of a rib 92 formed on the supporting bracket 82 and thus de termine a normal position for the rock shaft and the lever 7 0 while permitting the shaft to be rocked a limited distance in either direction by the operation of the lever. Mounted loosely on the rock shaft 76 are ratchet wheels 94 and 96 which are provided respectively for imparting movement to the toe gripper lever 38 and the side gripper levers 8. The ratchet wheel 94 is permanently connected by means of pins 98 to the hub of a lever arm 100 which also is loosely mounted on the rock shaft 76, and the arm 100 is connected by a link 102 to an arm 104 fast on a rock shaft 106 mounted in stationary bearings in the frame of the machine. Secured to the shaft 106 are arms 108 which are connected by links 110 to a block 112 mounted slidably on the toe gripper operat 'ing rod 46 between the lower end of the spring 54 and the block 44 in which the rear end of the lever 38 is swiveled. Through these connections movement of the ratchet wheel 94 in a clockwise direction as viewed in Fig. 2 will serve, after the main updraw movement of the grippers has been efiected to move the rear end of the lever 38 farther downwardly and thus to impart an additional updraw movement to the toe gripper. The ratchet wheel 96 is permanently connected by means of pins 114 to the hub of a lever arm 116 normally loose on the shaft 76 and upon the outer end of which is swiveled a bar 118 connected by links 120 to pins 122 projecting laterally from the rear ends of the side gripper levers 8. Through these connections movement of the ratchet wheel 96 in a counter clockwise direction, as viewed in Fig. 2, will serve, after the main updraw movement of the grippers has been effected, to move the rear ends of the levers 8 downwardly and thus to impart an additional updraw movement to the side grippers while permitting said grippers to assume different positions relatively to each other.

In order to render the hand lever 70 effective to operate the ratchet wheels 94 and 96 as desired the machine is provided with a pawl 124 arranged for engagement with the teeth on the ratchet wheel 94 and with a pawl 126 arranged for engagement with teeth 128 on the ratchet wheel 96. The pawls 124 and 126 are fast on a rock shaft 130 which is mounted in bearings in arms 132 and 134 fast on the rock shaft 76, the arm 134 projecting from the hub 74 previously mentioned. Secured to one end of the shaft 130 is an arm 136 connected by a link 138 to one arm of a bell crank 140 pivoted on the lever arm 72, the other arm of the bell crank 140 being connected to a rod 142 which e tends downwardly within the tubular lever 70 and at its lower end is threaded in a turnbuckle 144. Threaded in the lower end of the turnbuckle 144 is a rod 146 which is slidably supported in a bearing block 148 and is connected at its lower end to one arm of a bell crank 150. The other arm of the bell crank 150 is arranged to enter a recess in a block 152 mounted slidably in a holder 154 secured to the lower end of the lever 70. Fast on the slide block 152 is a handle 156. Within the tubular lever 70, on opposite sides of the fixed bearing block 148 are springs 158 and 160 the outer ends of which are in engagement respectively with blocks 162 and 164 fast on the rod 146. These springs in their action upon the blocks 162 and 164 serve through the connections described to hold the pawls 124 and 126 normally in a neutral position in which they are out of engagement with the respective ratchet wheels, and also to maintain the block 152 in an intermediate location in its slideway. It will be evident that movement of the handle 156 and the slide 152 toward the left from the position indicated in Fig. 2 will'cause the pawl 124 to engage the teeth of the ratchet wheel 94, and that movement of the handle and the slide in the opposite ea -sea direction will cause the pawl 126 to engage the teeth 128 on the ratchet wheel 96.

If the operator desires, after the main updraw movement of the grippers has been effected, to impart a supplementary updraw movement to the toe gripper, he grasps the handle 156 and pushes it toward the rear of the machine. The first result of the push upon the handle 156 is to slide the block 152 rearwardly relatively to the lever thus moving the pawl 124 into engagement with the ratchet wheel 94, this movement of the pawl being effected against the tension of the positioning spring 160 in the lever 7 0. Continued pressure upon the handle 156 then causes the rock shaft 76 and the ratchet wheel 94 to be moved together as a unit against the pressure of the spring plunger (Fig. and through the connections described, to impart a downward movement to the rear end of the lever 38 and thus to impart an additional pull to the toe gripper. If it is desired to impart an additional updraw movement to the side grippers, the handle 156 is pulled in a direction toward the front of the machine. The first effect of this pulling movement upon the handle is to move the pawl 126 against the tension of the positioning spring 158 into engagement with the teeth 128 of the ratchet wheel 96. As the operator continues to pull upon the handle 156 the rock shaft and the ratchet wheel 96 are moved together as a unit against the tension of the spring plunger 88, which serves through the connettions described to impart further downward movement to the rear ends of the side gripper levers 8 and thus to impart an additional updraw movement to the side grippers. The operator may thus manipulate the lever 70 at will either to increase the tension with which the upper is pulled at the toe of the last or to increase the tension of the upper transversely of the last. As soon as the handle 156 is released by the operator the rock shaft 76 and the pawls are immediately returned to their neutral positions through the action of one or the other of the plungers 88 and 90 and of oneor the other of the centralizing springs 158 and 160 without affecting the positions of the grippers.

By reference to Fig. 3 it will be seen that when the parts of the machine are in startiug position previous to the operation of the machine upon a shoe, the blocks 12 and 44 are positioned by the springs 26 and 54- in such manner as to afford no freedom for further downward movement of the blocks relatively to the cam slides. It will be understood, however, particularly by reference to Fig. 2, which shows the parts in the positions which they assume at the end of the main updraw movement of the grippers, that due to the compression of the springs 26 and 54 against the resistance of the upper stock, the cam slides 16 and 48 move downward in the upper tensioning operation a considerable distance relatively to the blocks 12 and 44 and thus provide a space between the blocks and the cam slides such as to permit the blocks to be moved down relatively to the slides by means of the hand lever 70 for further tensioning the upper. It will be further understood that during such manually effected additional upper tensioning movement of the side grippers or the toe gripper, the updraw springs react and serve effectively to retain the grippers substantially in the positions to which they are moved by the operation of the hand lever.

As hereinbefore explained it is desirable that further tensioning of the upper at the toe end of the last subsequent to the main updraw movement of the grippers be accom panied by a relaxation of the tension of the upper transversely of the forepart. For this purpose the machine is provided with means whereby the ratchet wheel 96 is caused to move in unison with the ratchet wheel 94 in the same direction during the supplemental pull of the toe gripper, thus causing the lever arm 116 to uplift the links 120 and the connected ends of the side gripper levers 8 and move the side grippers downwardly to relax the tension. To this end, a pawl 166 is provided for engagement with teeth 168 on the ratchet wheel 96, these teeth pointing in the reverse direction from the teeth 128 previously mentioned. The pawl. 166 is pivotally mounted on a plate 17 6 which is sleeved on an annularly reduced portion of the hub of the lever arm 116. The pawl is connected by a link 172 to the lower arm of a lever 174 pivoted on a fixed shaft 176, the upper arm of the lever 174 carrying a roll 1.78 arranged to be operated by a cam 180 formed on the front side of the hub portion of the arm 132 hereinbefore referred to as secured to the rock shaft 76. A spring 182 connected to the lower end of the lever 1.74 tends to position the parts normally with the plate 170 in engagement with a fixed stop 184 and the pawl 166 in engagement with a pin 186 on the plate 170. It will be evident that the main updraw movement of the. grippers is accom panied by a simultaneous movement of the ratchet wheels 94 and 96 in opposite directions respectively by reason of the permanent connections between these ratchet wheels and the grippers, and such movement will cause the ratchet wheel 96 to be dlsplaced in a counter clockwise direction from the position indicated in Fig. 4 to bring the teeth 128 under the pawl 126. It will be understood, however, that the position of the rock shaft 76 is not affected by the main 'updraw movement of the grippers and therefore that the cam 180 at the time when the supplemental updraw movement of the toe gripper is to be effected, is positioned with relation to the roll 178 as indicated in Fig. 41. As the rock shaft 76 begins to turn in a clockwise direction, as viewed in Fig. 4, under the influence of the hand lever when the latter is moved in the direction for operating the toe gripper to increase the tension of the upper, the cam 180 fast with the rock shaft immediately begins to operate upon the roll 178 to swing the lever 174 about its axis .176 against the tension of the spring 182. Through the link 172 the pawl 166 is thus moved immediately into engagement with the teeth 168 of the ratchet wheel 96, and as the lever 1741 continues its movement effected by the cam 180, the pawl 166 and the plate 170 are turned together with the rock shaft 76, thus moving the ratchet wheel 96 in a direction to uplift the lever arm 116 and the rear ends of the gripper levers 8 and move the side grippers downwardly to relax the tension of the upper transversely of the last. It will be seen by reference to Fig. 4 that the outer surface 188 of the cam 180 is concentric with the axis of the rock shaft 76. This construction insures a limit to the relaxing movement of the SlClG grippers irrespective of the continued upper tensioning movement of the toe gripper, since after the concentric surface 188 of the cam has come into engagement with the roll 178, no further movement 1s imparted to the lever 17 4; during continued movement of the rock shaft 76. hen the rock shaft 76 is returned to its neutral position by the action of the spring plunger and the cam 180 is withdrawn from the roll 178, the spring 182 causes the pawl 166 to be disengaged from the teeth 168 and returns the lever 174 and the plate 170 to the respective positions indicated in Fig. 4.

The general characteristics of the mechanism with which the nachine is provided for driving tacks to hold the upper in place subsequently to the pulling-over operation are described in detail in the prion patents hereinbefore referred to, and with respect to certain features also in Patent No. 1,082,487, granted on December 30, 1913 upon an application of Arthur Bates. As hereinbefore explained, the machine is provided with side tacker arms 64-v and a front tacker arm 66 which are swung inwardly over the bottom of the shoe in the final stage of the cycle of operations of the machine, these arms being swiveled in supports 190; as shown in 9. Mounted slidab'ly in each of these tackcr arms is a driver bar 192, these driver bars being normally held in'uplifted position against the pressure of spring operated arms 194: which operate at the upper ends of the bars and serve to impel them downwardly for driving the.

tacks when they are released. in the final stage of the cycle of operations. Adjustable caps 196 on the bars serve by engagement with suitable abutinents to limit the driving movement of the bars. The tacks are delivered periodically to the several tacking mechanisms through tubes 198 which receive the tacks from a tack separator 200, not shown herein'in detail but constructed, for example, as shown in Patent No. 1,002,421, 75 granted on September 5, 1911 upon an application of B. F.- McFeely, this separator being reciprocated once in each cycle of operations of the machine to cause a tack to be delivered to each of the tubes 198 near the end of the cycle of operations such tacks being conducted by the tubes into position to be driven by the tack drivers during a subsequent operation of the machine upon another shoe. The reciprocatory movements of the tack separator are effected by the oscillatory movement of a tack hopper 202 having t e usual means for elevating the tacks and depositing them in suitable raceways for delivery to the separator. The connections between the hopper 202 and the separator whereby the latter is reciprocated may be, for example, such as those illustrated in prior United States Letters Patent No. 668.777 granted on December 11, 1900, upon an application of R. F. McFeely. The tack hopper receives its oscillatory movement from a rack bar 204. which is reciprocated once during each cycle of operations of the machine by means of an eccentric on the cam shaft 22, as set forth in detail in United States Letters Patent No. 1,107,337, granted on Aug. 18, 1914 upon an application of R. F. McFeely. As explained in said patent, the rack bar 204 is moved yieldingly in both directions through connections including a spring herein shown at 206 which cushions the movements of the hopper 202 and is arranged, to permit a relative movement under certain conditions of different portions of the operating connections between the rack bar and cam shaft.

As hereinbefore explained, it is sometimes necessary in the operation of machines of this type to release the shoe subsequently to the updraw movement of the grippers and then to cause the machine to complete its cycle of operations idly in order to bring the parts again to starting position. In order to prevent, under such conditions, the discharge of the tacks which are already in position to be driven by the drivers, this machine is provided with mechanism shown in detail in Figs. 6 to 11 inclusive for pre venting operative movement of the drivers. By reference to Figs. 7 and 8 it-will be seen that the upper end portion of each of the driver bars 192, 'wherethe bar is of generally cylindrical shape, in flattened at opposite sides and that grooves 208 are formed 1'30 shaft 222 and the connected plates 212 which are maintained in their normal locations by the spring 238. The machine is provided, however, with means wherelrv the plungers 274: will be forced into the sockets 276 in the event of premature removal of a shoe from the machine and thus effect an operative connection between the two hubs 256 and 262 to cause the rock shaft 222 and. its connected mechanism to be operated through movement of the slide 246. This means comprises a presser member 280 which is slidably mounted upon the upper end. of a stud 282 the lower end of which is threaded. within a recess in the end of the rod 258. Pivotally connected to the presser member 280 is a rod 28 the upper 'end'of which is in slidable engagement with a tubular connecting member 286, this member being fast at its upper end to an upwardly extending rod 288 which is provided with a forked upper end portion 290 partially enibracing a pin 292 secured to one side of one of the side updraw levers 8. The connecting member 286 carries a pin 294 which projects through a slot 296 extending lengthwiseof the rod 284, this construction affording provision for limited relative movement between the two members 284 and 286. A spring 298 within the member 286 tends to effect relative separating move ment between this member and the rod 284 while permitting a limited downward movement of the member 286 and its connected rod 288 relatively to the rod 28a.

By reference to Fig. 1 it will be seen that as the parts are normally positioned prior to the beginning of the cycle of operations, the pin 292 on the updraw lever 8 is positioned at some distance above the lower end of the slot in the fork 290, the rod 288 being positioned at this time by the action of the spring 298 at its upper limit of movement determined by the pin 294 and the slot 296. In this position of the parts also the s rings 278 uphold the plungers 274 with t. e lower ends of the plungers outside of the sockets 276, notwithstanding the fact that these sockets are at this time in line with the plungers. A shoe having been placed in position to be pulled and the machine started, the rear ends of the updraw levers in the first period of the cycle of operations are moved downwardly, thus causing the pin 292 to approach the lower end of the slot in the fork 290. This slot. however, is of such length and is so located initially relatively to the pin that during any normal upper pulling movement of the levers the pin 292 imparts no movement to the fork 290 and the rod 288. In the event, therefore, that the machine completes its normal cycle of operations, the plungers 274 are maintained by their springs outside of the sockets 276 until the hub 256 has of course spring upwardly under the influence of their updraw springs 14: and 54. the rear end. portions of the levers being depressed as far as permitted by the cam slides. During; such movement the rod 288 is forced downward. by the action of the. pin 292, but since the sockets 2?6 are at this time out of line with the ilunggers 274-, the latter are restrained from downward movement by engagement with the upper face of the hub The downward movement of the rod 288 is therefore effected against the tension of the spring 298, the connecting); member 286 sliding idly upon the rod 284. When the hub 256 is returned to its starting position the gripper levers also are of course returned to starting position and the parts are again located in the positions indicated in Fig. 1.

In case the operator finds it necessary to remove the shoe from the machine while the machine is at rest following the updraw movement of the grippers, the updraw levers, when the grippers are released from the upper are, of course, forced to their limits of movement by the updraw springs 14 and 5d precisely as they would have been subsequently upon their release from the shoe at the normal time. lVhen the grip pers are thus prematurely released, the pin 292 becomes effective to impart downward movement to the rod 288 in the manner hereinbefore explained and since the hub 256 is at this time still in position to cause the sockets 276 to align with the plungers 274, these plungers are forced downwardly by the action of the presser member 280 under the influence of the rod 288, the ten sion of the spring 298 being considerably stronger than that of the springs 278. The two hubs 256 and 262 are thus locked together and when, upon the next subsequent actuation of the starting treadle, the slide 246 is operated to swing the clamp arms 62 inward, the hub 262 is turned with the hub 256 and imparts, through the connections hereinbefore described, such movement to the rock shaft 222 and the plates 212 as to turn these plates into the positions indicated by Fig. 8, causing them to enter the grooves 208 in the driver bars 192 and lock the bars against downward movement. Upon. the actuation of the Cir :ueeonso tected by the return of the locked hubs 256 and and by the action of the spring the plungers 27% being finally permitted to spring upward out of the sockets in consequence of the upward return movement of the rear ends of the levers b, the parts or the .taolrer controlling mechanism thus assuming their normal relation.

By re'terence to Fi 6 it will be noted that upon one side oi the hopper 202 is a projecting lug 2509. Cihis lug is so located with reicrcnce to the slide rod 23% hereinbeit'ore referred to that-mover it oi? this rod against the tension of the spring 236 brings it into position to engage thelug 300 and thus to prevent further movement of the hopper 202 and of the rail; bar st durino continued movement of the rack bar operating means against the tension of the spring 206. Such movement of the rod 23 is e1- tccted by the rock shaft 222 through the connections 24:0, when the shaft is operated to move the plates 212 into locking position. During the completion of the cycle oi: operative movements of the machine therefore, no movement will be imparted to the tack separator 200 such as to ettect a discharge of taclrs into the tubes 198, the tacks already in position under the drivers being of course retained for subsequent use. In order to obviate any shock through release of the hopper 202 to the action of the rack bar operating spring 206 while this spring is under heavy compression the lug 800 and the rod 23l are so shaped that they interlock and thus cause the lug to prevent return oi the rod to its starting position until after the tension of me s g soc has been relieved by the reverse movement of the rack bar operating; connections and movement has been impartei'l to the hopper in the direction to witluflraw the lug; from the rod. The-slot in the rod 240 permits the rock shaft 222 and its connected mechanism to be returned to starting position while the rod 23 1 is held by the lug. When the rod 23d is rel arsed it is returned by its spring); 236.

As explained in detail. in Patent No. l )2$,-i8i', the side gripp rs and the toe gripper in machines of this type after they have pull he upper, are moved inwardly by the action of springs to draw themargin Of the upper over the bottom of the last into position to be QPRGtl the ii'iward movement of the grippers being controlled b mechanism which is subseducntly opered to spread the grippers during their return to starting position this spreading mechanism beingad ustable to vary the 1m tial position otthe grippers for shoes of ditlerentsizes. This mechanism, as shown in detail in Fig. 12, comprises anoperating rack bar 302 which engages a pinion fast on a rotatable shaft 306. Mountedon the shaft 306 and connected thereto normally by means or a clutch 308 is a sleeve 310 having formed thereon a pinion 312 which engages teeth on a rack bar 314. The bar 31.4- has a forward extension 316 provided with a roll 318 in engagement with the rear side of the toe gripper bar 32, and mounted also on the bar 31a is a wedge member 320 for controlling, the inward and outward movements of the side grippers. The inclined side faces of the member 320 engage rolls 322 mounted on pivoted blocks 32% which carry bearing plates 326 in engagement with the inner sides of the side gripper bars 6. By this mechanism the grippers are held normally spread apart and are permitted to move inwardly in response to the pressure of their springs when the bar 31% and its wedge 320 are retracted through the action of the rack 302011 the pinion 30 The construction provides also for adjustment of the bar 31st and its connected wedge 320 to vary the initial spread of the grippermsuch adjustment being; etfected by moving the sleeve 810 lengthwise oi the shaft 306 to disengage the parts of the clutch 308 and then by turning the sleeve relatively to the shaft itor moving the bar l i relatively to the operating rack 302, after which the sleeve 310 is again forced outwardly by its controlling spring (not shown) to cause the sleeve to be again connected to theshaitt through the clutch 308 In the use of the machine on some classes of work, as for example'on shoes that vary considerably in width with but little it any variation inlength, it is sometimes desirggrippers toward or from each other iv of any adjustmeiui o' the F this pun pose there is provic iil in the construction shown novel mechanism whereby the operator is enabled readily to elfect a quick adjustment of the wedge block 320 lengthwise a'long' the bar 314 to vary the normal spread of the side grippers. This mechanism comprises a block 328 secured upon the lower side of the front arm 316 of the bar 31%, this block having fast thereon a screw threaded rod 330 which proiects loosely through holes 332 formed in lugggs ii-l i and. 336 onlthe wedge bloclr 320. Threaded on, the rad i-330 between the lugs 33a and 336 is a pinion 338 which is in mesh with an elongated pinion 3&0 carried by a shaft which is mounted in bez-iri in a tired bracket the pinion projecting loosely {)l-Jq through a hole 344: in the lug On one end of the shaft upon which the pinion 3-1-0 is mounted is secured a beveled gear 3&6 which is in mesh with a beveled gear 348 secured to a short shaft 350 mounted in bearings in the frame. The shaft 350 carries a pinion 352 which is in mesh with a pinion 354 on a sleeve 356 mounted rotatably upon the shaft 306. On theouter end of the sleeve 856-is formed a hand wheel 358. By turning the hand wheel 358 in one direction or the other movement is imparted through the gearing above described to the pinion 340, and thence to thepinion 3-338 threaded upon the rod 330. Since the rod 330 is lined relatively to the bar 314:, the rotation of the pinion 338 serves to. adjust the wedge block 320 lengthwise of the bar in either dircction as desired, the wedge block being forced along the bar by the engagement of the pinion 338 with one or the other of'the lugs 384; or 336. In the normal movements of the bar 314 and the wedge block 320 to spread or to permit inward movement of the grippers or to adjust the normal spread of all the grippers, the pinion 338 and the lug 834 travel idly along the pinion 340 without affecting the adjustment of the; wedge block relatively to the bar.

As explained in the Ashton patent hereinbefore referred to, it is the practice in the use of machines of the illustrated type, in cluding wipers for lasting the toe portion of the shoe, for the operator to press the wipers closely about the toe end of the shoe in position to start their overwiping movement and to-open the toe gripper to cause it to release the upper before the clutch is actuated to effect the final stage of the cycle In order that the upper about the toe of the shoe of operations of the machine.

shall be held without substantial loss of the pulling-over tension during the interval between the release of the toe gripper and the overwiping of the upper, it is desirable that the inner edges of the wipers conform closely to the contour of the last round the toe, at the sides as well as at the end of the 1 toe. In order to permit such initial conformation of the wipers to the last in a sat isfactory manner on shoes of different widths, the machine. herein shown is provided with means for adjusting the normal limit of opening movement of the wipers. By reference to Fig. 14 it will be seen that the wiper plates 68 are mounted on pivots 360 on the wiper support 362 and are normally retracted to their open position by means of springs 364 connected respectively to the wipers and to the support. Mounted on extensions 366 of the wiper plates 68 are studs 368 provided with eccentric portions 370 in position to engage the edges of the supporting plate 362 to limit the opening movement of the wipers underthe influence of the. springs 364:. By turning the studs wise-e59 368' the eccentrics I370 thus be positioned for variablydetermining the initial spread of the wiper plates. lhreaded on the studs at the opposite side of the extensions from the eccentrics are nuts 572 which are tightened to secure the studs and eccentrics in adjusted position. In this manner the normal spread of the wiper plates 68 may be adjusted to conform to differences in width of different lines of work.

By reference to Fig. 15, which illustrates the relation of parts of the machine to a shoe of small size such childs shoe, it will be evident that the side gripper 2 and the rear portion of the sole rest 58 ong ge the work in a location relatively much nearer the heel end of the last than in the case of a shoe ofadults size. By reason of this relation between the last and the parts of the pulling-over mechanism in the case of a small shoe, it hasbeen found that when the toe gripper is released from the stock and the wipers are presses inward by hand against the upper adjacent to theedge of the sole there is a tendency for the toe end f the shoe to be forced downward slightly by the pressure of the wipers, the last tendrock or swi about portion of the sole restapproximately between the locations where the side grippers engage the A further reason for et a to. L

1e case of a childs shoe is t:.. ry, that the heel rest engage the end of such a shoe under less pressure than in the case of an adults shoe in order to avoid pushing the last an r the shoe forw l y, and the heel rest therefore is comively ineffective as a means for hold ing the rear end of the shoe frictionally against upwd tilting movement. In the use of Illflol1l11$ of this type on children s work, moreover, it is the practice to use a controlling cam so saaped as to cause the machine to complete its cycle of operations in two stages instead of three, and therefore at the time when the toe gripper is tripped and the wipers are positioned against the shoe, the side clamp iavenot as yet been swung inward into supporting engagel ment with the forepart ofthe shoe. Aresult of this tendency for the toe end of the last to be depressed prior to the lasting oporation is that the upper is wiped over the sole with less effective wiping pressure than is desirable. In order to void ency for rocking movemem of the last the machine herein shown is provided with an abutment 3745which is fast on the heel rest and is arranged to project over the heel portion of the sole on the last in position to prevent any upward tilting movement of the heel end portion of the shoe and consequently any depressing movement toe end the shoe. l Vhile this con MEG Laaossa struction is, as above explained, of particular advantage in the operation of the machine upon small size shoes, it Will be evident that it is not thus limitedin utility but is equally applicable to use on any size of shoe as an additional security against displacement of the work.

Since the operation ot the different teatures of the construction has been set forth in connection with the detailed description of the dii'l'erent features, a brief explanation of the manner of operation of the machine as a whole will sultice for an understanding of the invention litter a shoe has been placed in position with the margin of the up per projecting within the open aivs ot' the grippers, the clutch is tripped and the updraw movement ot the grippers .is etl'ecrmi. It, upon inspection of the work, the operator determines that it is necessary to effect an additional pull of the toe gripper in order to stretch the upper properly lengthwise of the last, he grasps the iandle 156 and pushes it rearwardly, thus connecting the pawl 124;.

with the ratchet wheel 9% and operating the rock shaft 76 and the connections between this shaft and the toe gripper lever 38 to ettect an additional updraw movement of the toe gripper to the extent desired. Simulta neously, as hereinbetore explained in detail, the pawl 166 is caused to engage the teeth 1.68 of the ratchet wheel 96 connected to the side gripper levers and to effect a limited movement of these levers in a direction to relax the tension of the upper transversely of the last. After the upper has been thus tensioned by the toe gripper in the manner desired, the operator pulls the handle 156 in the opposite direction, thus disconnecting the pawls 12dand 166 from their ratchetwheels and bringing the pawl 126 into engagement with the teeth 128 of the wheel 96, continued movement of the handle and the lever in the same direction. serving to move the wheel 96 in the direction to impart. to the side grippers an upper tei'isioning movement to stretch the upper finally across the :tormpart to the extent desired. in case it is :tound to be unnecessary to stretch the upper additionally by means of the toe gripper, the operator may of course omit a movement of the handle 156 and the lever 70 in the direction to effect this result, and it it is found to be desirable simply to effect an additional stretching of the upper transversely of the last, the handle and the lever in b simply be pulled to updraw the side grippers without having previously been nianipulated for operating the toe gripper. li hen the proper iinal tensioning of the up per has been obtained and any other adjustinent characteristic in the use of machines oi. this tyi ie which it is desired to make has been eit'e ted, the clutch is tripped a second time and the side clamp arms are swung into enper levers gagement with the shoe. The Wipers are now adyusted by hand in position to beg ii their wiping action upon the stock toe rinocr is onetrcd to cause it to ease a 1i i ,v the upper at the one. or the toe. iii n the the sole and by operating the taclzers to drive the securing tacks, the parts oi the machine then being returned to their starting positions and the shoe released.

in case it is observed during the pause in the operation ot' the machine at the end oi? the updraw movement of the grippers that the edges, oi? the upper are incorrectly positioned in the grippers in such manner that it is necessary tor the shoe to be pulled a scc- 0nd time, the several grippers are opened in the usual manner to cause. them to release the stock and the clutch is then tripped to cause the machine to complete its cycle of movements idly. lmniediately upon such premature release of the shoe, operative connection is established in the manner hereinba tore explained between the slide 2&6 and the mechanism for locking the driver bars 192 and for stopping the movements oi the tack hopper 2052, and by the operatic-n of this mechanism dicharge of the tacks under t 1e drivers and delivery oi additional tacks to the drivers are prevented during the remaiir iiig portion oi? the cycle of movements of the machine.

it will be evident that the mechanism for suspending the normal operation of the tack drivin and taclr suppl; *ing means is equally as effective in case the :hine is caused. to go through its entire cycle of movements idly it isii a shoe is first pulled and then prematurely released, since it the grippers are operated idly in the first stage. of the cycle of ope ations of the machine, the gripare to and immediately to their c l i: oi? movement and operative connec ii is cstab' led l ctween the t ent porti is oi the Hi chanisni whr driver lo king devices and the stop icr the tack hopper are operated. it will also be evident that even it the shoe sho id not be entirely removed from the machin y no tacks will be driven during the completion of the cycle it that side gripper lever which on trols the tacking ha. released the upper or has moved bevondthe :osition which it nor- '1 inally assun in Eil'ilfjficblllfl an upper to proper tension.

Having described the invention, what I claim as new and desire to secure by liet ers Patent (it the United States is:

1. ln a mat inc ot the class describedthe comljiination iiitl shoe posit fling means, of

a 'ilurality oi grippers for engaging the upper of the shoe, power operated means for effecting relative movement of said shoe positioning means and the grippers to pull the upper, said power operated means being constructed and arranged to come automatically to rest with the upper held under tension, manually controlled means for moving one gripper subsequently in a direction to increase the tension of the upper, and connected mechanism for insurnig a co-operative movement of another gripper in a direction to relaX the tension of the upper.

2. In a machine of the class described, the combination with shoe positioning means, of a plurality of grippers for engaging the upper of the shoe, means for effecting relative movement of said shoe positioning means and the grippers to pull the upper, operating means movable into operative connection with a gripper after the upper has been pulled for moving said gripper in a direc tion to increase the tension of the upper, and connections between said operating means and another gripper constructed to insure a co-operative movement of said other gripper in a direction to relax the tension of the upper.

3. In a machine of the class described, the combination with shoe positioning means, of. a plurality of grippers for engaging the upper of the shoe, power operated means for effecting relative movement of said shoe positioning means and the grippers to pull the upper, said power operated means being constructed and arranged to come automatically to rest with the upper held'under tension, operating means for effecting subsequent movement of the grippers, and connections between said operating means and different grippers constructed to cause a movement of said operating means in one direction to effect movements of said difierent grippers simultaneously in different respective directions for increasing and for relaxing respectively the tension of the upper.

1-. In a machine of the class described, the combination with shoe positioning means of a plurality of grippers for engaging the up per of the shoe, means for effecting relative movement of said shoe positioning means and the grippers to pull the upper, a controlling member, and means normally disconnected from said controlling member and arranged I to be connected thereto to enable the operator by a movement of said member in one direction to cause a movement of one gripper in a direction to increase the tension of the upper and a movement of another gripper in a direction to relax the tension.

5. In a machine of the class described, the combination with shoe positioning means, of a plurality of grippers for engaging the upper of the shoe, means for effecting relative movement of said shoe positioning means and the grippers to pull the upper, a manually operative member, connectioi'ls between said member and one gripper arranged to be rendered operative after the upper has been pulled for operating said gripper to increase the tension of the upper, and means opera.- tive through movement of said member for connecting it to another gripper and for simultaneously operating said other g ipper to relax the tension of the upper.

6. In a machine of the class described, the combination with shoe positioning means, of a plurality of grippers for engaging the upper of the shoe, means for effecting relative movement of said shoe positioning means and the grippers to pull the upper, and operating means normally disconnected from the grippers and movable into operative connection with different grippers after the upper has been pulled, said operating means being constructed to move said different grip pers in unison to increase the tension of one portion of the upper and to relax the tension of another portion.

7. In a machine of the class described, the combination with shoe positioning means, of a plurality of grippers for engaging the up )er of the shoe means for effectin relative movement of said shoe positioning means and the grippers to pull the upper, a manually operative member, and means normally disconnected from said member for effecting manually through movement of said member in one direction co-operative movements of different grippers in different respective directions to change the relative tensions of different portions of the upper.

8. In a machine of the class described the combination with shoe positioning means, of a plurality of grippers for engaging the upper of the shoe, means for operating said grippers to pull the upper, manual means normally disconnected from said grippers for imparting supplemental movements thereto, and means automatically operative upon a movement of said manual means in one direction to effect a connection with different grippers and to move them in differ ent respective directions to change the ten sion of the upper.

9. In a machine of the class described, the combination with shoe positioning means, of an upper engaging gripper, manual means for imparting movement to said gripper,

means for maintaining said manual means normally disconnected from the gripper, and means automatically operative through a movement of said manual means in one direction to effect a connection with the gripper and then to move the gripper.

10. In a'machine of the class described, the combination with shoe positioning means, of an upper engaging gripper, op erating means for said gripper, means for maintaining said operating means normally disconnected from the gripper, and means (Li r auton'ia ically ope ative through a movement es; 5 id ope: ding means in one direction to cheat a connecti n with the gripper and then by further movement in said direc- "cii to more the gzrimper.

11. in a machine or the class described, the combinN' on with shoe positioning means, of gripper ior engr' ing t e upper of the shoe, means for opei gripper to pull the upper, supplemental gripper operating; means normally disconnected from said gripper, and i'neans automaticiiilly operative n movement oi said supplemental mating means in one direction first to not a connection with the gripper and then to move he gripper in a direction to inthe tension of the upper. in a machine of the class described, combine. on with shoe positioning; pper :l'or engaging the upper t the shoe, means for operating said grip- *er 1 0 pull the upper, supplemental gripper rating; means comprising a manuallv optire member normally disconnected rrom aid gripper, and clutch means automaticalv movable itively to said n'iember upon a movement or the member in one direction eta con .ectien between said member in!) gripper through which to move the pal 4 curing continued movement oi? the member in the same direction.

, n a ma hine of the class described, the

ccnnbination with shoe positioning means, oi

I oer for engaging the upper of the t, means for operating said gripper to the upp 1r, a ratchet wheel connected. to

.5 upper, a pawl normally disconnected n the pawl into enga ement with the t wheel and for operating the ratchet wheel to ellect a subsequent n'iovement oi the qripper.

1% w 1 a machine of the c. described, the rumor Lion with shoe positioning means, of gripper tor engaging the upper oi the shoe. means tor operating said gripper to pul the upper, a ratchet wheel connected to :71., "oper, a pawl, means tor maintaining 'l normally out of engagei'nent with et wheel, and means nu 'able in one direction first to cause the p to ensaid ratchet wheel and then to operi sent (it the tem rctcbet wl -el to short a mm,

the ratchet wheel and then to efiect a movement of the gripper.

1". In a machine of the class described, the combination with an upper engaging gripper, of a ratchet wheel connected to the ipper, a hand lever for operating said ratchet wheel to effect a movement of the gripper, a pawl for connecting said hand lever to the ratchet wheel, a handle on said lever arranged to be grasped by the operator to manipulate the lever, said handle being mounted for limited movement relatively to the lever in the same direction as the operative movement of the lever, and means connecting said handle to the pawl to cause the movement or the pawl into and out of engagement with the ratchet wheel to be controlled by said handle.

1"? In a machine of the class described, the combination with an upper engaging gripper, of a ratchet wheel connected to the gripper, a hand lever for operating said ratchet wheel to effect a movement oi the gripper, a pawl for connecting said hand lever to the ratchet wheel, a handle on said lever arranged to be grasped by the operator to manipulate the lever, said handle being mounted for limited movement relatively to the lever in the same direction as the operative movement of the lever, connections between said handle and the pawl, and yieldable means for normally positioning the pawl out of engagement with the ratchet wheel while permitting it to be moved into engagement with the wheel by an initial movement of the handle in the direction to operate the lever.

18. in a machine of the class described, the combination with shoe positioning means, of an upper engaging gripper an operating member, and connections comprising a ratclr et wheel and a pawl between said memher and the gripper for in'nparting movement to said gripper.

19. In a machine of the class described, the coinbinati with an upper engaging gripper and means for operating said gripper to pull the upper, of supplemental gripper operating means comprising a ratchet wheel connected to the gripper, a pawl for operating said wheel, and means for mainta luring the pawl out'ot engagement with the ratchet wheel dur'i said first operation oi the gripper In a machine of the class described, the combination with shoe positioning means, of a plurality of upper engaging grippers, means for effecting relative movement of said shoe positioning means and the movement of the clutch membersinthe same direction for changing the J ative. tensions of different portions or" the upper, and means for operating said clutch members 21. In a machine of the class described, the combination with shoe positioning means, of a slurality oi grippersior engaging theupper oi the shoe, means for operating said grippers to pull. the upper, and supplemental gripper operating means comprising rotatable clutch members, means connecting said clutch members respectively to different grippers to cause said grippers to be moved respectively in substantially opposite directions though movements of the clutch members in the same direction, and manual means for opera-tine said clutch members to effect supplemental movements or grippers.

22. In a machine of the class the combination with shoe position described,

in means,- ot a plugrallty oi: grippers for epgaging the upper or rheshoe, moi eireot"'";' iative movement of s .d shoe portioning means and to grippers to pull the upper, and means for operating diii erent grippers to change the tension of the upper, said operating means comprising ratchet wheels connected respectively to said different grippers, and pawls for operating said ratchet wheels in any position or said wheels.

23. In a machine of the class described, the combination with a shoe positioning means, of a plurality of grippers for engaging the upper of the shoe, means for operating said grippers to pull the upper, and supplemental gripper operating 'ineans comprising a pair of ratchet wheels, means connecting said ratchet wheels respectively to diilerent grippers to causesaid gripp rs to be moved respectively'in substantially oppoupper oi the shoe, means For operating said grippers to pull. the upper, and supplemental gripper operating means comprising a rock shaft, a pair oi ratchet whees mounted to turn about said rock shaft, means connectsaid ratchet wheels respectively to (litinnl'erent grippers to cause said gr opers to be moved respectively in substantially oppodire-o one by movement oi said ratchet wheels in the directio pawls mounted to turn about the axis oi said roclr sha t. and means for connecting said pawls to the ratchet wheels and for operating said pawls and ratchet wheels through a movement of the rock shaft.

In amachine of the class described, the combination with shoe positioningmeaus, of plurality of grippers for the up rippers to pull the upper, and supplemental ripper operating means comprising a rock shaft, a pair of ratchet wheels mounted to turn about the axis oil" said rock shaft, n'ieans connecting said ratchet u 'heels respectively to diiit'erent grippers to cause said uppers to be moved respectively In substantic iy opposite directions by movement of said ratchet wheels in the same direction, paw s for imparting operative movement to said ratchet wheels, one of said pawls being carried by the rock shaft, means for operating the rock shaft, and means carried by the rock shaft tor imparting operative movement to the other pawl.

26. In a machine of the cl combination with .neans, of a plurality of 'ppers ing the uppe of the shoe, means ing said grippers to pull the TI pa, and sup L slit lemental gripper operating in {us com ing u rock shaft, apair of ratchet wheels mounted to turn about the axis of rock shaft, means connecting said ratchet wneels respectively to different grippers to cause said grippers to be moved respectively in substantially opposite directions by mov ment of said ratchet wheels in the same direction, pawls for imparting operative movement to said ratchet wheels, one of said pawls being carried by the roclr sha t and the other mounted with provision for relative movement between it and the rock shaft, means for operating said rocl: sha t, and cam carried by said rock shaft for imparting operative movement to said other pawl.

27. In a machine of the class descri ed, the combine n -with shoe positioning means, of a plurality of'i grippers for engaging the upper of the shoe, means for operatmg said rippers to pull the upper, and sup plemental gripper operating means comprising a rock shaft, a pair of ratchet wheels mounted to turn about the axis of said rock shaft, means connecting said ratchet wheels respectively to different grippers to cans-re sa d grippers to be moved respectively in substantially opposite directions by moucment of said ratchet wheels in the same di rection, pawls for impartin operati re movement to said ratchet wheelsfoue or? said pawls being carried by the reel: shaft and the other mounted with provision tor relative movement between it and the reel: shalt, means for operat said roc can) carried by said roclr. she. i operative movement to said other pawl. said cam being constructed to ll nit he movement imparted. to its pawl irrespective o't continued movement of the other pawl.

28. In a machine of the class described. the combination with shoe positioni men: s, or" plurality of grippers for e1. gaging the upper oi: the shoe, means tor 

